WO2007025414A1 - Seringue hypodermique de sécurité avec porte-aiguille rétractable - Google Patents

Seringue hypodermique de sécurité avec porte-aiguille rétractable Download PDF

Info

Publication number
WO2007025414A1
WO2007025414A1 PCT/CN2005/001385 CN2005001385W WO2007025414A1 WO 2007025414 A1 WO2007025414 A1 WO 2007025414A1 CN 2005001385 W CN2005001385 W CN 2005001385W WO 2007025414 A1 WO2007025414 A1 WO 2007025414A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle
syringe
space
safety syringe
push rod
Prior art date
Application number
PCT/CN2005/001385
Other languages
English (en)
Chinese (zh)
Inventor
Weishui Wu
Original Assignee
Weishui Wu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP05018060A priority Critical patent/EP1754499A1/fr
Priority to US11/211,451 priority patent/US20070060885A1/en
Priority to AU2005204337A priority patent/AU2005204337A1/en
Application filed by Weishui Wu filed Critical Weishui Wu
Priority to PCT/CN2005/001385 priority patent/WO2007025414A1/fr
Priority to CA002521264A priority patent/CA2521264A1/fr
Publication of WO2007025414A1 publication Critical patent/WO2007025414A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/347—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub rotatable, e.g. bayonet or screw
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M2005/3103—Leak prevention means for distal end of syringes, i.e. syringe end for mounting a needle
    • A61M2005/3106—Plugs for syringes without needle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
    • A61M2005/5073—Means for preventing re-use by disconnection of piston and piston-rod by breaking or rupturing the connection parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3202—Devices for protection of the needle before use, e.g. caps

Definitions

  • the invention relates to a safety syringe with a recyclable needle, in particular to a safety syringe which can be retracted and stored in the syringe after the syringe and the needle holder are used, and the push rod is broken to close the syringe .
  • a safe injection device should enable the medical staff to automatically put the used needles in a safe place after the nursing operation process, in order to prevent the stab wounds that occur when the needle is manually removed, so that the medical staff Reduce the chance of direct contact with the needle after use.
  • a second object of the present invention is to provide a safety syringe that can be inserted into the syringe after use.
  • Another object of the present invention is to provide a safety syringe that can be placed in a reservoir space within the syringe after use.
  • the present invention adopts the following technical solutions:
  • the invention provides a safety syringe with a recyclable needle, which comprises a syringe, a push rod, a needle seat and a needle cover;
  • the syringe has a drug storage space, and a front end of the drug storage space is formed with a positioning space, and the front end of the positioning space runs through a wall of the syringe is formed with a needle perforation, and the positioning space forms a tapered cone surface in the direction of the needle perforation, and the surface of the positioning space is provided with a plurality of stopping portions, the blocking portion has a guiding slope to facilitate rotation Fixing the needle seat, the rear end of the drug storage space is convexly provided with a broken edge; the push rod is disposed in the syringe, and the top end is provided with a pushing portion, and a plurality of pairs are arranged around the pushing portion a rear portion of the alignment portion, the ring is provided with a groove, and the sleeve is sleeve
  • the needle cover is first placed on the needle seat, and the needle seat is fixed on the push rod; then the force is applied by the push rod to fix the needle, and the fixed block of the needle seat and the syringe are rotated by rotation. Stop Closely combined, the needle cover can then be removed for drug withdrawal; after use, the push rod continues to apply force, but the needle holder is reversely rotated to separate the fixed block from the stop; Pull back the push rod and bring back the needle holder to the syringe. Then pull the push rod left and right to break the neck, so that the collar can be left in the syringe for sealing. Finally, the needle cover can be reversed. Insert into the needle perforation.
  • the guiding portion of the syringe and the fixing block of the needle holder are mutually provided with a guiding slope and a tapered surface to ensure that the needle holder is rotationally fixed in the syringe.
  • the needle holder can be reversely rotated to separate the fixed block of the needle holder from the stopper of the syringe.
  • the outer diameter of the needle cover is slightly larger than the needle perforation of the syringe, and the needle cover can be reversely inserted into the needle perforation. Attached sleep instructions
  • Figure 1 is a perspective exploded view of an embodiment of a safety syringe for a recyclable needle of the present invention
  • Figure 2 (A) is a perspective view showing a first embodiment of the push rod of the safety syringe of the recyclable needle of the present invention
  • Figure 2 (B) is a perspective view of a second embodiment of the push rod of the safety syringe of the recyclable needle of the present invention
  • Figure 3 (A) is a front elevational view of the first embodiment of the needle holder of the safety syringe of the recyclable needle of the present invention
  • Figure 3 (B) is a cross-sectional view showing the first embodiment of the needle holder of the safety syringe of the recyclable needle of the present invention
  • Figure 3 (C) is a perspective view of the first embodiment of the needle holder of the safety syringe of the recyclable needle of the present invention
  • Figure 3 (D) is a cross-sectional view showing a second embodiment of the needle holder of the safety syringe of the recyclable needle of the present invention
  • Figure 4 is a perspective view showing the push rod of the safety syringe of the recyclable needle of the present invention inserted into the rear of the needle holder;
  • Figure 5 is a perspective view showing the first embodiment of the present invention in which the needle cover is sleeved in the needle holder and combined in the syringe;
  • Figure 6 is a perspective view showing the first embodiment of the fixed block of the needle holder and the first embodiment of the stop portion of the syringe in close contact with the push rod of the present invention
  • Figure 6 (A) is a partial enlarged view of Figure 6;
  • Figure 6 (B) is an enlarged plan view showing a second embodiment of the fixing block of the needle holder of the present invention in close contact with the second embodiment of the stopper portion of the syringe;
  • Figure 6 (C) is a fixing block of the needle holder of the present invention.
  • 2 is an enlarged view of the third embodiment of the syringe with the stopper;
  • FIG. 7 is a perspective view of the plunger in the first embodiment of the present invention;
  • Figure 8 is a perspective view showing the first embodiment of the present invention in which the push rod reversely rotates the needle holder to separate the fixing block from the stopper of the syringe;
  • Fig. 9 is a perspective view showing the plunger of the first embodiment of the present invention, which is placed in the syringe after the neck is broken.
  • a safety syringe for a recyclable needle provided by the present invention comprises: a syringe 1, a push rod 2, a needle holder 3 and a needle cover 4.
  • the syringe 1 has a drug storage space 11 for accommodating an injection medicament.
  • the front end of the drug storage space 11 is formed with a positioning space 12 for fixing the needle holder 3.
  • the front end of the positioning space 12 extends through the syringe 1
  • the wall surface is formed with a needle perforation 13 having an outer diameter slightly larger than the needle perforation 13 of the syringe 1 to facilitate the passage of the needle 36 of the needle holder 3, and the surface of the positioning space 12 is provided with a plurality of blocks.
  • the stopping portion 14 is of the same shape and the same size, and is surrounded by the surface of the positioning space 12 by a fixed distance or a spaced distance, and the stopping portion 14 has a low tilting guide from one side.
  • the inclined surface 141 or the guiding inclined surface 141 which is inclined downward from the center to the both sides (as shown in FIG. 6(B)), and the guiding portion 14 may also be disposed with a circular arc or an arc-shaped guiding surface 142 (FIG. 6).
  • C) is shown), the needle holder 3 is rotated and fixed, and the positioning space 12 forms a tapered tapered surface 15 in the direction of the needle perforation 13 , and the rear end of the drug storage space 11 is convexly provided with a broken edge 16 , used to break the putter 2.
  • the broken edge 16 has an inner diameter that is slightly smaller than the outer diameter of the needle seat.
  • the push rod 2 is disposed in the syringe 1 for applying a medicament.
  • the top end of the push rod 2 is provided with a pushing portion 21, and a plurality of alignment portions 22 are disposed around the pushing portion 21, as shown in FIG. (A) and FIG. 2(B), the aligning portions 22 are of the same shape and the same size, and are disposed around the urging portion 21 at a fixed distance or at intervals, so that the ejector portion 21 can be worn. Entering the rear of the needle holder 3, and the position of the push rod 2 is fixed by the alignment portion 22, as shown in FIG.
  • the rear ring of the aligning portion 22 is provided with a groove, and the groove is sleeved with a ring 23, which is made of rubber, silicone or soft rubber, and can be pressed in the drug storage space.
  • a ring 23 which is made of rubber, silicone or soft rubber, and can be pressed in the drug storage space.
  • 11 on the wall surface, and the push rod 2 behind the collar 23 is provided with a neck portion 24, which is broken with the broken edge 16 of the syringe barrel 1, as shown in FIG. It is left in the syringe 1 for sealing.
  • the needle holder 3 is fixed on the positioning space 12 of the syringe 1.
  • the front end of the needle holder 3 is provided with a channel 31.
  • the channel 31 is re-adhesive or embedded with the needle 36.
  • the needle 36 protrudes through the needle through hole 13.
  • the accommodating space 32 is disposed at the rear end of the channel 31.
  • the surface of the accommodating space 32 is convexly formed with the same shape and the same size.
  • a limit space (not labeled) is formed between the adjacent two positioning blocks 33, so that the alignment of the push rod 2 is performed.
  • the portion 22 can be docked into the limiting space, and the positioning block 33 can be embedded in the aligning portion 22 of the push rod 2, and the outer portion of the needle holder 3 is provided with a plurality of shapes, the same size, and a fixed distance or
  • the fixing block 34 is separated by a distance, and as shown in FIG. 3(A), the fixing block 34 is also provided on the bottom side with a tapered surface 341 which is inclined from one side or a tapered surface which is inclined from the center to both sides. 341 (shown in Fig. 6(B)), the stopper portion 14 of the syringe 1 can be rotated and urged in one direction.
  • the needle cover 4 is in the form of a cone for covering the needle holder 3.
  • the needle cover 4 is first placed on the needle holder 3, and can be quickly positioned by the positioning block 33 to be embedded in the pair.
  • the position portion 22 is fixed to the push rod 2; then the push rod 2 is biased to pass the needle 31 out of the needle through hole 13, and the fixed block 34 of the needle seat 3 and the stop portion of the syringe 1 are rotated by the push rod 2.
  • the positioning space 12 of the syringe 1 can be interposed with the periphery of the needle holder 3.
  • the tapered surface 15 , 35 after the needle holder 3 is rotationally fixed in the positioning space 12 of the syringe 1 , the tapered surface 35 of the needle holder 3 can be fitted on the tapered surface 15 of the syringe 1 to The drug storage space 11 of the syringe 1 is brought into a completely sealed state.
  • the needle cover 4 can be removed at this time, and the needle 31 is pushed into the medicine bottle (not shown), and then the push rod 2 is pulled back, since the needle holder 3 has been It is fixed in the syringe 1 , so the alignment portion 22 can be smoothly taken out from the positioning block 33 to retreat the push rod 2 to extract the medicine in the drug storage space 11 of the syringe 1 , as shown in FIG. 7 ,
  • the injection work can be performed. After the injection of the medicine is completed, the user can continue to apply the force to the push rod 2 to make the alignment portion 22 and the positioning block 33.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Environmental & Geological Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L’invention concerne une seringue hypodermique de sécurité avec porte-aiguille rétractable. La seringue hypodermique de sécurité de la présente invention comprend un barillet, un plongeur, un porte-aiguille et un capuchon d'aiguille. Le capuchon d'aiguille peut renfermer l’aiguille. Une pluralité d’éléments d'engagement sont disposés à l'extérieur du porte-aiguille, et une pluralité d’éléments d'engagement sont disposés sur le côté intérieur du plongeur ; les éléments d'engagement du porte-aiguille peuvent s’engager dans les éléments d'engagement du plongeur de telle sorte que le porte-aiguille puisse être maintenu en toute sécurité au niveau de l'extrémité distale du barillet. Une pluralité d’éléments de positionnement sont disposés à l'intérieur du porte-aiguille, et une pluralité d’éléments de positionnement sont disposés à l’extrémité distale du plongeur ; les éléments de positionnement du porte-aiguille peuvent s’engager dans les éléments de positionnement du plongeur de telle sorte que le porte-aiguille puisse se connecter avec le plongeur. Un élément de séparation et une portion col permettront à l’utilisateur de rompre le plongeur. Ainsi, un utilisateur peut commencer par employer le plongeur afin de positionner le porte-aiguille, administrer une injection, tirer le plongeur vers l’arrière pour rétracter le porte-aiguille et conserver le porte-aiguille à l’intérieur du barillet de sorte que personne n’aura un contact direct avec l’aiguille hypodermique.
PCT/CN2005/001385 2005-08-19 2005-09-02 Seringue hypodermique de sécurité avec porte-aiguille rétractable WO2007025414A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP05018060A EP1754499A1 (fr) 2005-08-19 2005-08-19 Seringue hypodermique de sécurité à support d'aiguille rétractable
US11/211,451 US20070060885A1 (en) 2005-08-19 2005-08-26 Safety hypodermic syringe with retractable needle carrier
AU2005204337A AU2005204337A1 (en) 2005-08-19 2005-08-30 Safety hypodermic syringe with retractable needle carrier
PCT/CN2005/001385 WO2007025414A1 (fr) 2005-08-19 2005-09-02 Seringue hypodermique de sécurité avec porte-aiguille rétractable
CA002521264A CA2521264A1 (fr) 2005-08-19 2005-09-27 Seringue hypodermique de securite a porte-aiguille retractable

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP05018060A EP1754499A1 (fr) 2005-08-19 2005-08-19 Seringue hypodermique de sécurité à support d'aiguille rétractable
US11/211,451 US20070060885A1 (en) 2005-08-19 2005-08-26 Safety hypodermic syringe with retractable needle carrier
AU2005204337A AU2005204337A1 (en) 2005-08-19 2005-08-30 Safety hypodermic syringe with retractable needle carrier
PCT/CN2005/001385 WO2007025414A1 (fr) 2005-08-19 2005-09-02 Seringue hypodermique de sécurité avec porte-aiguille rétractable
CA002521264A CA2521264A1 (fr) 2005-08-19 2005-09-27 Seringue hypodermique de securite a porte-aiguille retractable

Publications (1)

Publication Number Publication Date
WO2007025414A1 true WO2007025414A1 (fr) 2007-03-08

Family

ID=38038646

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/001385 WO2007025414A1 (fr) 2005-08-19 2005-09-02 Seringue hypodermique de sécurité avec porte-aiguille rétractable

Country Status (5)

Country Link
US (1) US20070060885A1 (fr)
EP (1) EP1754499A1 (fr)
AU (1) AU2005204337A1 (fr)
CA (1) CA2521264A1 (fr)
WO (1) WO2007025414A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005072801A1 (fr) * 2004-01-28 2005-08-11 Unitract Syringe Pty Ltd Seringue retractable a systeme de desactivation du piston
US7762987B2 (en) * 2005-08-26 2010-07-27 Wei-Shui Wu Safety syringe device with separable needle stem by turning back
DE102007063294A1 (de) * 2007-12-27 2009-07-02 Birgit Riesinger Wundauflage enthaltend superabsorbierende Polymere
ES2822304T3 (es) 2008-11-26 2021-04-30 Becton Dickinson Co Jeringa de un solo uso con desactivación automática
US7955300B2 (en) * 2009-05-11 2011-06-07 Shu-Ming Chang Disposable safety syringe with retractable needle
ES2617699T3 (es) * 2011-03-07 2017-06-19 Midland Medical Devices Holdings, Llc Jeringa retráctil con resalte de retención segmentado
DE102014008610A1 (de) * 2014-06-06 2015-12-17 Kocher-Plastik Maschinenbau Gmbh Abgabevorrichtung
US10898658B2 (en) * 2016-07-06 2021-01-26 LynJohnston, LLC Compact injection device with telescoping components
CA3088158A1 (fr) 2018-01-10 2019-07-18 LynJohnston, LLC Systemes et procedes associes a un injecteur compact
CN109010045A (zh) * 2018-08-22 2018-12-18 安徽宏宇五洲医疗器械股份有限公司 螺旋式注射针

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CN1049457A (zh) * 1989-08-14 1991-02-27 曹健华 安全注射器
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CN1049285A (zh) * 1989-07-11 1991-02-20 格里哈姆·享格·维廉姆斯 针头可回缩的一次性皮下注射器
CN1049457A (zh) * 1989-08-14 1991-02-27 曹健华 安全注射器
US5346474A (en) * 1991-11-06 1994-09-13 Design & Engineering Associates Disposable safety syringe
CN2140753Y (zh) * 1992-09-24 1993-08-25 李仁方 一种使用安全的注射器新颖结构
CN2170110Y (zh) * 1993-05-21 1994-06-29 李仁方 一种使用安全的注射器新颖结构(二)
CN1100958A (zh) * 1993-09-30 1995-04-05 因维罗医疗器具有限公司 具有针头护套和可收回的针头的安全注射器
CN2395732Y (zh) * 1999-11-29 2000-09-13 黄吴顺 改进结构的安全注射器
CN2461574Y (zh) * 2001-01-05 2001-11-28 王琳 扭转回缩式安全注射针筒
FR2854806A3 (fr) * 2003-05-12 2004-11-19 Jih Hsiung Yang Seringue de securite
US20050033228A1 (en) * 2003-08-08 2005-02-10 Wang Hsien Tung Disposable safety syringe
CN2654143Y (zh) * 2003-10-15 2004-11-10 穗德医材科技有限公司 针头可回缩式安全注射器（三）
CN2661216Y (zh) * 2003-10-23 2004-12-08 穗德医材科技有限公司 针头可回缩式安全注射器（二）

Also Published As

Publication number Publication date
US20070060885A1 (en) 2007-03-15
EP1754499A1 (fr) 2007-02-21
CA2521264A1 (fr) 2007-03-27
AU2005204337A1 (en) 2007-03-15

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